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8027630: SIGSEGV in const char*Klass::external_name()

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Reviewed-by: coleenp, sspitsyn, mgronlun
This commit is contained in:
Staffan Larsen 2013-11-18 10:20:13 +01:00
parent 3e62155fec
commit 92187d7583
3 changed files with 44 additions and 1 deletions
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33
hotspot/src/share/vm/services/threadService.cpp
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@ -200,6 +200,12 @@ void ThreadService::oops_do(OopClosure* f) {
}
}
void ThreadService::metadata_do(void f(Metadata*)) {
for (ThreadDumpResult* dump = _threaddump_list; dump != NULL; dump = dump->next()) {
dump->metadata_do(f);
}
}
void ThreadService::add_thread_dump(ThreadDumpResult* dump) {
MutexLocker ml(Management_lock);
if (_threaddump_list == NULL) {
@ -451,9 +457,16 @@ void ThreadDumpResult::oops_do(OopClosure* f) {
}
}
void ThreadDumpResult::metadata_do(void f(Metadata*)) {
for (ThreadSnapshot* ts = _snapshots; ts != NULL; ts = ts->next()) {
ts->metadata_do(f);
}
}
StackFrameInfo::StackFrameInfo(javaVFrame* jvf, bool with_lock_info) {
_method = jvf->method();
_bci = jvf->bci();
_class_holder = _method->method_holder()->klass_holder();
_locked_monitors = NULL;
if (with_lock_info) {
ResourceMark rm;
@ -477,6 +490,11 @@ void StackFrameInfo::oops_do(OopClosure* f) {
f->do_oop((oop*) _locked_monitors->adr_at(i));
}
}
f->do_oop(&_class_holder);
}
void StackFrameInfo::metadata_do(void f(Metadata*)) {
f(_method);
}
void StackFrameInfo::print_on(outputStream* st) const {
@ -620,6 +638,14 @@ void ThreadStackTrace::oops_do(OopClosure* f) {
}
}
void ThreadStackTrace::metadata_do(void f(Metadata*)) {
int length = _frames->length();
for (int i = 0; i < length; i++) {
_frames->at(i)->metadata_do(f);
}
}
ConcurrentLocksDump::~ConcurrentLocksDump() {
if (_retain_map_on_free) {
return;
@ -823,6 +849,13 @@ void ThreadSnapshot::oops_do(OopClosure* f) {
}
}
void ThreadSnapshot::metadata_do(void f(Metadata*)) {
if (_stack_trace != NULL) {
_stack_trace->metadata_do(f);
}
}
DeadlockCycle::DeadlockCycle() {
_is_deadlock = false;
_threads = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JavaThread*>(INITIAL_ARRAY_SIZE, true);